Hello all experts, masters, gurus, sifu. I would like like to seek for your enlightenment in GR&R. I have come across someone using the GR&R as described below.

Sample : 60 meters 2 sets of test jigs.

Mounted the 60 meters on the first test jigs. Feed the current via the test jig into the meter and record the meters output. So there is 60 readings. Repeat the current feeding and output recording. There are 120 readings, 60 from the first and second test respectively.

Using the same 60 meters and repeat the above using the second test jigs. Therefore, there are 240 readings collected.

If you’re doing only 2 “operators”, it’s highly recommended to get 3 measurements of each part so you have a good estimation of the s.d. of the gage measurement system. One caveat–people think that machines have no interaction with people placing the parts into the system and that can be a mistake–sample prep can be a big deal. Just an fyi.